Urinary calcium excretion in healthy children Original Article

Abstract

Aim: Measurement of calcium creatinine ratio in spot urine sample is a practical screening method for hypercalciuria This study aimed to identify age related reference percentile values for urinary calcium creatinine ratio in healthy children and to determine the frequency of hypercalciuria Material and Method: A total of 614 children were included Second morning urine samples were collected and calcium creatinine ratio mg mg was calculated Results were examined for the following six age groups: Group 1 1 6 months; Group 2 7 12 months; Group 3 13 months 2 years; Group 4 25 months 6 years; Group 5 7 12 years; and Group 6 13 16 years Results: The mean±SD values for calcium creatinine ratios of the age groups were as follows: Group 1 0 33±0 10; Group 2 0 23±0 06; Group 3 0 15±0 08; Group 4 0 13±0 08; Group 5 0 09±0 07; and Group 6 0 08±0 07 respectively Corresponding 95th percentile values for the age groups 1 to 6 were 0 57 0 40 0 32 0 26 0 23 and 0 23 respectively Hypercalciuria prevalence was found as 4 7 in our area Urinary calcium creatinine ratio was negatively correlated with age and body mass index Conclusions: Our findings suggest that age of the child 95th percentile values and geographical differences should be taken into account in detecting the reference values for urinary calcium creatinine ratio Turk Arch Ped 2009; 44: 131 4 Key words: Children hypercalciuria urinary calcium to creatinine ratio normal values percentilee

Keywords

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Sağlıklı çocuklarda idrar kalsiyum atılımı Orijinal Araştırma

Öz

Amaç: Hiperkalsiüri taramasında spot idrar kalsiyum kreatinin oranı pratik bir yöntemdir Bu çalışmada sağlıklı çocuklarda yaşlara göre spot idrar kalsiyum kreatinin oranı normal persantil değerlerini ve hiperkalsiüri yaygınlığını belirlemek istedik nbsp; Gereç ve Yöntem: Çalışmaya 614 çocuk alındı Olguların sabah ikinci idrar örnekleri toplandı ve kalsiyum kreatinin oranı mg mg olarak hesaplandı Olgular Grup 1 1 6 ay Grup 2 7 12 ay Grup 3 13 ay 2 yaş Grup 4 25 ay 6 yaş Grup 5 7 12 yaş ve Grup 6 13 16 yaş olmak üzere altı farklı gruba ayrılarak incelendi nbsp; Bulgular: Olgularımızın kalsiyum kreatinin oranları ortalama±SS Grup 1’de 0 33±0 10 Grup 2’de 0 23±0 06 Grup 3’de 0 15±0 08 Grup 4’de 0 13±0 08 Grup 5’de 0 09±0 07 Grup 6’da 0 08±0 07 saptandı Olgularımızın yaş ilişkili 95 persantil değerleri Grup 1’de 0 57 Grup 2’de 0 40 Grup 3’de 0 32 Grup 4’de 0 26 Grup 5’de 0 23 ve Grup 6’da 0 23 bulundu Bölgemizde hiperkalsiüri yaygınlığı 4 7 bulundu İdrar kalsiyum kreatinin oranı ile yaş ve vücut kitle indeksi arasında olumsuz yönlü ilişki gözlendi Çıkarımlar: İdrar kalsiyum kreatinin kaynak değerlerinin saptanmasında çocuğun yaşının 95 persantil değerlerinin ve coğrafik farklılıkların göz önünde bulundurulması sonucuna varılmıştır nbsp; Türk Ped Arş 2009; 44: 131 4 Anahtar kelimeler: Çocuk hiperkalsiüri idrar kalsiyum kreatinin oranı normal değerler persantil

Anahtar Kelimeler

• Çocuk, hiperkalsiüri, idrar kalsiyum kreatinin oranı, normal değerler, persantil

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